WO1994001292A1 - Roue de guidage - Google Patents

Roue de guidage Download PDF

Info

Publication number
WO1994001292A1
WO1994001292A1 PCT/EP1993/001477 EP9301477W WO9401292A1 WO 1994001292 A1 WO1994001292 A1 WO 1994001292A1 EP 9301477 W EP9301477 W EP 9301477W WO 9401292 A1 WO9401292 A1 WO 9401292A1
Authority
WO
WIPO (PCT)
Prior art keywords
hollow shaft
locking
cam disc
impeller
support body
Prior art date
Application number
PCT/EP1993/001477
Other languages
German (de)
English (en)
Inventor
Manfred Elzenbeck
Klaus Haar
Werner Düring
Hans-Dieter Schäfer
Original Assignee
Gross + Froelich Gmbh & Co. Kg
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gross + Froelich Gmbh & Co. Kg filed Critical Gross + Froelich Gmbh & Co. Kg
Publication of WO1994001292A1 publication Critical patent/WO1994001292A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0036—Castors in general; Anti-clogging castors characterised by type of wheels
    • B60B33/0042—Double or twin wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
    • B60B33/0086—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism acting on rim or side portion of tyre
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
    • B60B33/021—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism combined with braking of castor wheel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
    • B60B33/025—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism by using form-fit, e.g. front teeth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B2200/00—Type of product being used or applied
    • B60B2200/20—Furniture or medical appliances
    • B60B2200/24—Beds
    • B60B2200/242—Hospital beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • B60B33/0015—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor
    • B60B33/0023—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor in the form of specific adaptations to the form of the object
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0049—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0057—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being offset from swivel axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
    • B60B33/0068—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being vertical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
    • B60B33/0073—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being symmetrical to wheel or wheels

Definitions

  • the invention relates to a swivel castor, in particular a swivel castor with a support body, with at least one impeller which is arranged on a wheel axle which extends transversely through the support body and which can be moved with its tread on a base, with one wheel at a distance from the wheel axis about a pivot axis oriented perpendicular to this, pivoted on the support body with a hollow shaft rotatably arranged in a switch housing of the hollow shaft about a transverse axis, with its cam curve acting against a shifting rod axially displaceable in the hollow shaft, and with a can be actuated via the shift rod, optionally locking or interrupting or interrupting or releasing the rolling and swiveling function of the impeller and the hollow shaft, or locking mechanism locking the running direction of the freewheeling impeller with respect to the hollow shaft in a predetermined straight direction.
  • Swivel castors of this type which are equipped with an integrated switching mechanism for actuating a total and directional lock, are used, for example, in hospital beds.
  • the switching mechanism is actuated centrally and jointly via a bed frame arranged in and into the bed frame Interlocking linkage cam discs on the castors.
  • the castors In order to ensure maneuverability of the hospital bed that is adapted to the special conditions, the castors must either be able to roll freely and swivel, or can be locked in their running direction with a wheel capable of rolling, or must be lockable in any rotational and swivel position.
  • a brake lever is provided for determining the rotation and the running direction of the running wheels, which is floating and is actuated by a complex pulling mechanism.
  • the shift rod is designed there as a pull rod which, with its fork-like end, engages over the cam disc towards the free shaft end. This makes it possible for the cam disc to pull the selector rod upwards against the force of a compression spring and to take a base plate with spur toothing upwards. This footplate presses against the floating brake lever and engages in a toothing there to secure the pivoting movement.
  • the brake lever engages with a toothed rack in the ring gear of a brake drum arranged on the inside of the impellers.
  • the determination in the straight direction takes place via a wheel holder, which is arranged in the lower part of the castor and can be snapped into a corresponding recess in the base plate of the pull rod.
  • a wheel holder which is arranged in the lower part of the castor and can be snapped into a corresponding recess in the base plate of the pull rod.
  • the holding forces for determining the straight alignment act at the outermost, weakest point of the pull rod, at which the greatest deflection of the pull rod is given transversely to the guide. Together with the floating brake lever, this arrangement tends to rattle in the respective release position.
  • the invention is based on the object of developing a swivel castor of the type specified at the outset which enables a stable bearing arrangement with design-oriented power transmission, manages with few components and ensures reliable function in all operating positions.
  • the solution according to the invention is based on the idea that when a shift rod designed as a push rod is used, the shifting elements for actuating the locking mechanisms can be arranged in the upper part of the roller neck, so that there is still space for an additional one in the lower region of the roller neck Location- tion of the hollow shaft and the shift rod remains.
  • the hollow shaft carries a switching ring connected to the hollow shaft against the force of a spring acting in the direction of the cam disc via the switching rod designed as a push rod, which test is connected to the hollow shaft and which on its side facing the cam disc
  • the end face has at least one swivel securing catch which can be locked in the one actuating position of the cam disc with a counter-latching of the supporting body and has a circumferential button on its side opposite the pivoting securing catch, and that on the supporting body a two-armed locking lever can be actuated by one against the force of a return spring via the button of the switching ring
  • the axis parallel to the wheel axis is pivotally mounted, one arm of which has a locking member against a locking drum fixed to the impeller and the other arm of which has a locking member which simultaneously acts against a locking drum which is hollow.
  • the locking drum which is fixed to the impeller and / or has a hollow shaft has a toothed ring for the engagement of the associated locking member, which preferably has a front rib or a front toothing complementary to the ring gear.
  • the hollow shaft has an axially aligned elongated hole guide for a radially over the inner switching rod protruding, radially engaging in the outer switching ring driving pin.
  • the shift ring expediently has an axially aligned slot hole, which is preferably open towards the cam disc and forms an end stop on the opposite side, for the driving bolt projecting radially beyond the shift rod.
  • the circumferential switching surface of the switching ring is advantageously designed as a conical surface.
  • the locking lever can be provided with two legs, which overlap the supporting body on opposite broad side surfaces and which are connected to one another by a web on a lever arm, on the free ends opposite the web each having a locking member for one of two impeller-side Locking drums is arranged, and at the web-side end of the locking member which preferably extends over the web is arranged for the hollow-shaft-side locking drum.
  • the conical switching surface of the switching ring can be displaced against an actuating bridge connecting the lever limbs on the side opposite the web, which is preferably formed by a connecting bolt made of hardened steel.
  • the arrangement according to the invention makes it possible, with simple means, for the switching ring to be arranged in a through a Locking of the cam disc defined intermediate position with release of the impeller rotation and the hollow shaft pivoting is both disengaged from the support body-side counter-locking and is lifted from the locking lever.
  • the hollow shaft of the steering roller is inserted into a metallic bed post and fastened to it, it is advantageous to avoid long-term signs of corrosion if the switch housing as the metallic hollow shaft is attached to its entire body via the support body projecting part overlapping, preferably on this snapped-sleeve-shaped plastic housing is formed.
  • the cam disk can be rotatably arranged about a transverse axis in a slot recess of the plastic housing, which is preferably open at the front edge and parallel to the pivot axis, and can be secured against falling out in the slot recess with a stop bolt engaging in a slot guide concentric with the transverse axis in the slot wall.
  • a modified variant of the invention provides that the hollow shaft carries, via the shift rod designed as a push rod, against the force of a spring acting in the direction of the cam disc, axially displaceable, rotationally fixedly connected to the hollow shaft, switching ring, which has at least one in its on its end face facing the cam disc has an actuating position of the cam disc with a counter-latching of the support body which can be latched, and that the Switching rod at its end opposite the cam disc has a stopper foot which projects beyond the lower end of the hollow shaft, can be placed on the base in an end position of the cam disc by lifting the impeller, and retracted over the base in the other switching positions.
  • La bi ⁇ c is a partially sectioned side view of a bedroll in three switch positions
  • Fig. 2 is a partially sectioned end view of the bedroll of Fig. 1;
  • Fig. 3 is a plan view of the bedroll of Fig. 1 and 2;
  • FIG. 4 shows a section through a swivel castor with a stopper foot.
  • the swivel castors shown in the drawing essentially consist of a support body 10, two wheels 14 arranged on a wheel axle 12 which extends transversely through the support body, a hollow shaft 18 which is mounted on the support body and is pivotable at a distance from the wheel axle about a pivot axis 16 oriented perpendicular thereto.
  • a switch housing 20 about a transverse axis 22 rotatably arranged, with its cam curve 24 acting against a shift rod 26 which is axially displaceable in the hollow shaft 18 and a cam disk 28 which can be actuated via the shift rod 26 and which optionally selectively locks or interrupts or releases or releases the roll and swivel function of the impellers 14 and the hollow shaft 18, or the running direction of the free-running wheels 14 with respect to the hollow shaft 18 in a predetermined gear locking mechanism.
  • the switch housing 20 is designed as a plastic sleeve which is snapped onto the hollow shaft 18 at its lower end and has an axially parallel slot recess 30 for the cam disk 28 at its upper end and a bore 32 concentric with the transverse axis 22 for the engagement of an actuating member or a switch gear ⁇ rod.
  • the cam disk 28 also has an eccentrically projecting stop pin 34 which is guided in an elongated hole 36 which is concentric with the transverse axis 22 and holds the cam disk 28 in the slot recess 30.
  • the shift rod 26 carries at its upper end a locking wedge 38 which can be locked into the locking recesses of the cam disk 28 under the action of the helical compression spring 40 arranged in the lower part.
  • the metallic hollow shaft 18 is mounted with its collar 42 via an axial needle bearing 44 and via additional radial and axial slide bearings 46, 48 about the pivot axis 16 and is mounted on the support body 10 so as to be non-displaceable.
  • a locking drum 52 provided with a ring gear 50 is fastened to the lower edge of the hollow shaft by means of a screw 54, the upward-facing ring surface 54 of which is at the same time designed as an axial bearing surface against the slide bearing part 48.
  • an axially displaceable switching ring 56 which is under the action of the compression spring 40, is arranged on the hollow shaft 18.
  • the switching ring can be coupled in the displacement direction with the switching rod 26, which engages with a driver pin 62 which projects radially on both sides through an elongated hole guide 64 of the hollow shaft 18 into elongated holes 66 of the switching ring 56 which are open at the edge.
  • the driving pin 62 abuts against the lower, closed edge of the elongated holes 66, so that the switching ring 56 is taken downward against the force of the spring 40 when the switching rod 26 is displaced.
  • the impellers 14 are held on the support body by a wheel holder 94 which can be screwed against the support body 10 with a screw 92 and which engages with mounting brackets 96 in a circumferential groove 98 of the wheel hubs 100 projecting inwards on the impellers 14.
  • the switching ring 56 has on its front side facing the cam disk 28 a swivel securing catch 58 formed by two projections, which in the upwardly displaced end position of the switching ring 56 and in the straight-ahead position of the impellers 14 into a counter-catch 60 des formed by corresponding recesses Supporting body 10 is clickable.
  • the switching ring In the middle switching position of the cam disk 28 shown in FIG. 1 a, the switching ring is in this, its upper swivel locking position in the straight direction of the impellers 14.
  • a two-armed locking lever 68 is pivotally mounted on the support body 10 about an axis 70 parallel to the wheel axis 12, one arm of which has two legs 72 which cross the support body on opposite broad side surfaces , which are interconnected by a web 74 on the other lever arm.
  • Locking members 76 are integrally formed on the free ends of the lifting legs 72, which engage in the locking position with spur teeth 78 in the ring gear 80 each of a locking drum 82 fixed to the impeller.
  • the other arm of the locking lever 68 has a locking member 84 in the area of the web 74, which engages in the locking position in the ring gear 50 of the locking drum 52 fixed to the hollow shaft.
  • a tension spring 86 acts on the locking lever in the release direction.
  • the locking lever 68 is actuated via the conical surface 88 of the switching ring 56 which slopes obliquely downwards and which, when the switching ring 56 is pressed down, strikes via the cam disk 28 against a hardened steel bolt 90 connecting the two lever legs 72 and counteracts the locking lever with its locking members 76, 84 the force of the spring 86 is pivoted against the locking drums 82, 52.
  • This actuation position is shown in Fig. lc.
  • the switching ring 56 is lifted off the actuating bolt 90 of the locking lever 68 and is simultaneously out of engagement with the counter-locking element 60 fixed to the supporting body 60 with its swivel securing catch 58.
  • the impellers can rotate freely and with respect to the hollow ⁇ shaft 18 can be pivoted freely.
  • the steering castor shown in FIG. 4 differs from the steering castors according to FIGS. 1 to 3 essentially in that at the lower end of the shift rod 26 a stopper foot 102 projecting beyond the lower edge of the hollow shaft 18 is attached, which is actuated accordingly ⁇ the cam disk 28 can be lowered from the retracted end position shown in solid lines into the end position shown in dash-dotted lines by lifting the impellers 14 from the floor 104.
  • An additional locking of the running wheels in the direction of rotation and swiveling is not necessary in this case, since the stop function is fulfilled solely by the extended stopper foot 102. Accordingly, the locking lever 68 can be dispensed with here, so that the switching ring 56 only has to be equipped with a swivel securing catch 58, but not with the cone-shaped button 88.
  • the inventions manure refers to a swivel castor that is used primarily as a bedside castor.
  • the swivel castor has a support body 10 with two wheels 14 arranged on a common wheel axis and a hollow shaft 18 which is mounted on the support body so as to be pivotable about a vertical axis.
  • a shift rod 26 is arranged axially displaceably in the hollow shaft 18, by means of which the rotary movement of the impellers 14 and the swiveling movement of the hollow shaft 18 can optionally be blocked or released by adjusting a cam disk 28 or the running direction of the free-running impellers 14 with respect to the hollow shaft 18 in given straight direction can be blocked.
  • the shift rod 26 is designed as a push rod, while the hollow shaft 18 has a spring acting against the force of a cam disk 28 in the direction of the cam 40 carries axially displaceable, rotatably connected to the hollow shaft 18 which switching ring 56 carries.
  • the switching ring has on its end face facing the cam disk 28 a swivel securing catch 58 which can be locked with a counter-catch 60 of the supporting body and on its side opposite the pivot-securing catch 58 a circumferential conical button 88.
  • a locking lever 68 which can be actuated via the button 88 of the switching ring 56, is mounted on the support body 10 and is provided with a locking element 76, 84 on each of its lever arms, one of which has a locking drum 82 fixed to the impeller and the other can be simultaneously engaged with a locking drum 52 fixed to the hollow shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Control Devices (AREA)

Abstract

L'invention concerne une roue de guidage servant essentiellement pour les lits d'hôpitaux. La roue de guidage comprend un élément-support (10) avec deux roues mobiles (14) disposées sur un axe commun, ainsi qu'une tige creuse (18) montée sur l'élément-support, de manière à pivoter autour d'un axe vertical. Une tige de commande (26) est montée axialement mobile dans la tige creuse (18) et permet de bloquer ou de libérer conjointement de manière sélective le mouvement rotatif des roues mobiles (14) et le mouvement pivotant de la tige creuse (18), par ajustement sur un disque à cames (28), ou bien de bloquer le sens de marche des roues mobiles libres par rapport à la tige creuse (18) dans une direction prédéfinie allant tout droit vers l'avant. Afin d'assurer une disposition stable des paliers pour la tige creuse (18) avec une transmission de force conforme à la construction et un fonctionnement fiable en toutes circonstances, la tige de commande (26) se présente sous forme de jambe de force; la tige creuse (18) porte une bague de commande (56) solidaire en rotation de ladite tige creuse (18) et déplaçable axialement dans une certaine mesure à l'encontre de la force d'un ressort (40) agissant en direction du disque à cames (28). La bague de commande comporte sur sa face frontale qui fait face au disque à cames (28), un cliquet anti-pivotement (58) encliquetable dans un contre-cliquet (60) de l'élément-support, ainsi qu'une surface de commande (88) conique circonférentielle sur son côté opposé au cliquet anti-pivotement (58). Un levier de blocage (68) actionnable par l'intermédiaire de la surface de commande (88) de la bague de commande (56) est logé sur l'élément-support (10) et comporte un élément de blocage (76, 84) sur chacun de ses bras. L'un des éléments de blocage peut être mis en contact avec un tambour de blocage (82) solidaire de la roue mobile et l'autre, avec un tambour de blocage (52) solidaire de la tige creuse.
PCT/EP1993/001477 1992-07-10 1993-06-11 Roue de guidage WO1994001292A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4222727.5 1992-07-10
DE19924222727 DE4222727A1 (de) 1992-07-10 1992-07-10 Lenkrolle

Publications (1)

Publication Number Publication Date
WO1994001292A1 true WO1994001292A1 (fr) 1994-01-20

Family

ID=6462941

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1993/001477 WO1994001292A1 (fr) 1992-07-10 1993-06-11 Roue de guidage

Country Status (2)

Country Link
DE (1) DE4222727A1 (fr)
WO (1) WO1994001292A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6843349B2 (en) * 2000-11-21 2005-01-18 Arrow Technology Systems Limited Trolley wheel mechanism
US8002363B2 (en) * 2009-08-26 2011-08-23 Pao-Hsien Cheng Quick release structure for front wheel of baby stroller
US8292327B2 (en) 2004-09-15 2012-10-23 Fernando Esteban Araya Moreno Device for the optional guiding of at least one self-steering wheel of a trolley
WO2012171814A1 (fr) * 2011-06-15 2012-12-20 Tente Gmbh & Co. Kg Ensemble roue à pivot

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10047006C2 (de) * 2000-09-22 2002-10-17 Steinco Paul Vom Stein Gmbh Lenkrolle für Apparate, Möbel, Krankenbetten od. dgl.
DE10113805B4 (de) 2001-03-21 2006-02-23 Herbert Brustmann Fahrgestell für einen Behandlungstisch insbesondere für chirurgische Eingriffe
CN101688573A (zh) 2007-04-16 2010-03-31 聂克森集团公司 运动控制装置
CN107049632B (zh) * 2017-06-20 2018-08-31 国家康复辅具研究中心 轻型便携式电动轮椅车
DE102019121482A1 (de) * 2019-08-08 2021-02-11 Fath Gmbh Rolleneinheit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2520097A1 (de) * 1975-05-06 1976-11-18 Schulte Soehne Kg A Lenkrolle fuer geraete, moebel u.dgl. insbesondere krankenbetten
DE2937540A1 (de) * 1979-09-17 1981-04-02 Paul Vom Stein & Co, 5632 Wermelskirchen Blockierbare lenkrolle fuer apparate, moebel, krankenbetten o.dgl.
GB2179848A (en) * 1985-09-06 1987-03-18 Tente Rollen Gmbh & Co Castor
EP0379065A1 (fr) * 1989-01-13 1990-07-25 Arnolf Schulte Roue à pivot avec dispositif de blocage
DE3521794C2 (fr) * 1984-06-21 1990-08-02 Colson Castors (Europe) Ltd., West Bromwich, West Midlands, Gb

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2520097A1 (de) * 1975-05-06 1976-11-18 Schulte Soehne Kg A Lenkrolle fuer geraete, moebel u.dgl. insbesondere krankenbetten
DE2937540A1 (de) * 1979-09-17 1981-04-02 Paul Vom Stein & Co, 5632 Wermelskirchen Blockierbare lenkrolle fuer apparate, moebel, krankenbetten o.dgl.
DE3521794C2 (fr) * 1984-06-21 1990-08-02 Colson Castors (Europe) Ltd., West Bromwich, West Midlands, Gb
GB2179848A (en) * 1985-09-06 1987-03-18 Tente Rollen Gmbh & Co Castor
EP0379065A1 (fr) * 1989-01-13 1990-07-25 Arnolf Schulte Roue à pivot avec dispositif de blocage

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6843349B2 (en) * 2000-11-21 2005-01-18 Arrow Technology Systems Limited Trolley wheel mechanism
US8292327B2 (en) 2004-09-15 2012-10-23 Fernando Esteban Araya Moreno Device for the optional guiding of at least one self-steering wheel of a trolley
US8002363B2 (en) * 2009-08-26 2011-08-23 Pao-Hsien Cheng Quick release structure for front wheel of baby stroller
WO2012171814A1 (fr) * 2011-06-15 2012-12-20 Tente Gmbh & Co. Kg Ensemble roue à pivot
US9862229B2 (en) 2011-06-15 2018-01-09 Tente Gmbh & Co. Kg Roller

Also Published As

Publication number Publication date
DE4222727A1 (de) 1994-01-13

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